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Late Warring States Period
Ming Knife Money
State of Yan
(Version 1)
戰國晚期
明刀幣
燕國造
(版型一)
Item number: A1663
Year: 313–222 BC
Material: Bronze
Size: 139.2 x 17.0 x 1.7 mm
Weight: 15.8 g
Provenance: Da Chen Stamps & Coins Collection 2016
This is a Ming Knife Money from the late Warring States period, widely circulated within the state of Yan. Knife money was a form of currency used primarily in the northern and eastern feudal states during the Spring and Autumn and Warring States periods, including Yan, Qi, Zhao, and Zhongshan. The design of knife money was inspired by everyday tools used by fishing and hunting communities, evolving from knives into a monetary form. The Ming knife money represents the most common type of knife coin issued by the state of Yan. Archaeologists have categorised these coins into three general types based on their appearance and the period in which they were produced.
This knife coin conforms to the late Warring States period knife money design, where the blade transitions from a curved edge to a squared-off shape to facilitate bundling. The ridges on the handle extend upward into the blade to reinforce the overall structure, preventing it from breaking easily. The coin exhibits a patina of greenish corrosion. One side of the blade is inscribed with the character Ming (明) in oracle script, though some scholars argue that it may be a variant form of Yan (晏). The opposite side of the blade also bears oracle script characters of uncertain meaning, which remain subject to scholarly debate. The handle terminates in a circular hole, likely for suspension or stringing.
The history of the Yan state can be traced back to the early Western Zhou period when Duke Shao (召公奭), a member of the Shang royal lineage, assisted King Wu of Zhou in overthrowing the Shang dynasty. Due to its remote location far from the Central Plains, historical records on Yan’s early history remain sparse. It was not until the Warring States period that Yan engaged more actively with the states of the Central Plains. During Qin Shi Huang’s campaign to unify China, Yan was the second-to-last state to be annexed by Qin. In a desperate attempt to resist Qin’s expansion, Crown Prince Dan of Yan sent the assassin Jing Ke to eliminate the King of Qin, but the mission failed. Ultimately, Yan was conquered by Qin in 222 BC.